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465 Views 1 Reply Latest reply: Mar 27, 2013 4:43 PM by genemoore RSS
cestrada Apprentice 92 posts since
Nov 26, 2010
Currently Being Moderated

Mar 22, 2013 9:52 AM

High CPU Load

In the last couple months, we've had several proxy servers with high CPU loads ( over 90%) resulting in slow browsing for our customers.   Internally we are trying to find the culprit machine(s) but we've been unsuccessful; in addition, we’ve sent Mcafee feedbacks but they don’t really capture or identify the root cause.


Does anyone have any ideas on what we can do proactively  obtain the CONNECTIONS being established either by  source IP’s \ MAC Address\ URL being called\ etc .to try to identify the culprit.  I’m hoping someone has a similar issue and created some sort of RuleBase to capture something similar to our problem.


Message was edited by: cestrada on 3/22/13 9:52:38 AM CDT
  • genemoore McAfee Employee 6 posts since
    Aug 16, 2011
    Currently Being Moderated
    1. Mar 27, 2013 4:43 PM (in response to cestrada)
    Re: High CPU Load

    check the following items.


    1.  Is your box simply undersized?  How many req/sec is your box processing during your peak cpu times?  Dashboard > Charts and Tables> Web Traffic Summary.  Add up the http and https req.  (Easiest if you look at 1 min resolution then divide by 60).  Make sure the req/sec doesnt exceed the capacity of your box.


    2.  Is your DNS or Authentication causing a delay which in turn causing MWG to hold the session open longer than necessary, which in turn can cause high CPU spike?  Check your dashboard > Charts and Tables > Performance Info and the Authentication Stats.  Look for high DNS and/or NTLM auth times.  (If authentication is applicable)


    3.  Are you using older hardware that you have upgraded to version 7?  If so, did you increase the RAM?  I find lots of customers that are using the older hardware but left the RAM at 4GB.  4GB is barely enough to operate MWG properly.  You should look adding RAM or refreshing your hardware with the newer models.


    If you still don't see anything obvious, try posting more info about your exact hardware as well as screen shots with the above information.

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